Barracuda 4LP Product Manual, Rev. D
37
(“X” means the function selection can be made with jumpers on that connector;
(
“Y” means the signal is available to host through that connector.)
Notes for Table 4 [ ]:
[a]
Use either J6 or J1-Aux, but not both.
[b]
I/O connector J1 plugs directly into host. No jumper can be installed on J1. The host supplies the logic
state of these function signals causing the selection of these functions. See pinout Table 13d and 13e.
[c]
The host can drive a remotely located Drive Activity LED using signal.
[d]
Use either J1 or J6, but not both.
[e]
The drive reads the ID (asserted low) from J1-Auxiliary pins 1, 3, 5 and 7 for 250 ms after power-on or
drive reset. Jumper plugs can be used on J1-Auxiliary pins 1-2, 3-4, 5-6 and 7-8 to set drive ID if desired,
but usually a connector/cable is plugged to J1-Auxiliary to run these signals to the host for remote ID
selection.
[f]
The host selects drive ID through J1.
Table 4:
Drive configuration selections summary
Interface
Type
Function
Connector
Applicable
Figure
J1
J6
J1-AUX J2
N
Drive ID
X, Y
none
7a
N
Drive Activity LED
Y [c]
none
7a
N
Option select
none
X
7d
W, WD
Drive ID
X, Y
X, Y [e]
7b, 7c [a]
W, WD
Drive Activity LED
Y [c]
Y [c]
7b, 7c [a]
W, WD
Option select
X
7d
WC, DC
Drive ID
Y[f]
X, Y
none
7b [d]
WC, DC
Drive Activity LED
Y[b][c]
Y [c]
none
7b [d]
WC, DC
Option select:
Delayed Mtr Start
Y[b]
none
X
7e
Enable Mtr Start
Y[b]
none
X
7e
Write Protect
none
X
7e
Parity Disable
none
X
7e
